Home / 12,948,077.80-19,422,116.70-4,428,692.20

Finding the Fourth Proportional to 12,948,077.80, 19,422,116.70 and 4,428,692.20

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Solution

The fourth proportional to 12,948,077.80, 19,422,116.70 and 4,428,692.20 is: 6,643,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,077.80 : 19,422,116.70 = 4,428,692.20 : x
  2. Step 2: Convert to fraction form
    12,948,077.80/19,422,116.70 = 4,428,692.20/x
  3. Step 3: Cross multiply
    12,948,077.80x = 19,422,116.70 × 4,428,692.20
  4. Step 4: Simplify right side
    12,948,077.80x = 86,014,576,736,779.73
  5. Step 5: Solve for x
    x = 86,014,576,736,779.73/12,948,077.80
  6. Step 6: Final answer
    x = 6,643,038.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.